Nut-lock.



H. W. WORTHINGTON.

NUT LOOK APPLICATION Hum JULY 8. 190B. 7

Patented APR-27, 1909.

2 SHEETS-SHEET l,

WITNESSES ATTORNEYS In the form shown in Fig. 7, the plate is not UNITED STATES PATENT OFFIGE.

Patented April 27, 1909. Serial No. 442,450.

Specification of Letters Patent.

Application filed July s, 1908.

thereof opposite the tooth is bent at an angle to the bedy of the plate as at 20.

In the'form shown in Fig. l not-cut-away, at one end to form the tooth, I but is provided with a spring plate 21, secured of l thereto as at 22, the free end ingbentto'form a tooth 23, for engaging the ratchet teeth, and the ends of the lock are rounded as at 24. The lower face of the plate is provided at one end with corruga- I tions 24*.

The form shown rounded as at 25 and To all whom it may concern;

Be it known that I, HENRY W. WORTHING- TON, a citizen of the United States, and a resi- I and useful Improvements'in Nut-Locks, which the following is a specification.

My invention is an improvement in nut locks and consists in certain novel constructions and combinations of parts hereinafter described and claimed. 1 I Referring to the drawings forming a part hereof Figure 1 is a transverse section through a rail showing a bolt provided with my improved nut lock. Fig. 2 is a perspective view of the lock. Fig. 3 is a bottom plan view. Fig. 4 is a plan view of the nut. Fig. 5 is a perspective viewof a modified form. Fig. 6 is a bottom planview of Fig. 5. Fig. 7 is a perspective view of another modification. Fig. 8 is a bottom plan view and a side view of another Fig. 9

in Fig. 10, has its ends corrugations are omittel I from its inner face, the form being otherwise the same as shown in Fig. 8.

In the form shown in Fig. 11, the ends of the plate are rounded as at 26, and the inner face is corrugated as at 27, while in the form shown in Fig. 12, the inner face is provided with sharpribs 26, and the end from which the teeth are formed is reduced in width as at 29.

It will be observedfroman inspection of Figs. 2, 3,5, 6, 8, 9, 11 and 12, that the corrugations or ribs are parallel with the direction of length of the'elliptical opening, that is v the said ribs or corrugations are parallel with the direction in which the lock will be driven to release the nut. It will be noticed that enlargement 3, for the transverse grooves do not interfere with bolt and the usual this movement, since the oints formed by threaded end 4, upon which screws the nut 5. thetransverse grooves and the corrugations The nut is of any suitable size. and shape, are arranged in parallel lines following the and is provided on its inner face with an ani direction of movement of nular series of ratchet teeth, 6, fora purpose I spring tooth as will be evident from an into be presently described. spection of Figs. 11 and 12 is depressed at its lock shown in Fig. 1, comprises a base below the face of the lock. 7 This arplate 7, having an elliptical opening 8 thererangement prevents interference of the base through, the plate at one end of the opening with the ratchet teeth.

eing cut-away as at 9, to forma tooth 10 for It will beobserved that each of the forms engaging the ratchet teeth, the washer being shown eigcept Fig. 13 is provided with the tempered in order-that the tooth may be reelliptical opening, the object of which is to silient. The plate is also arched longitudipermit of the easy release or'unlocking of the nally as at 11 and provided on its inner face lock. The locks are placed on the bolt, with with longitudinal corrug'ations12, and at the the longside thereof parallel withthe rail, end provided with the tooth, witha transand the tightening of the nut on the'bolt, verse groove 13. forces the corrugations or the ribs as the case In the form shown in Figs. 5 and 6 the cormay be into the fish plate.

rugations are replaced by ribs 16 having a i To release the lock, it is driven forward unsharp edge for engagingv the fish plate, the til the tooth 10 is disengaged from the ratchet corrugations on the fish plate being omitted.

modified form. is a top plan, central longitudinal section, and bottom plan view of another modified form. Fig. lan and edge view of another modified form, and Figs. 11, and 12 are similar views of other modified forms. In the present embodiment ofmy invention, the bolt 1, is provided with the usual head 2 having the lateral preventing turning of the mitting this movement. 7

The object of the transverse groove shown in Figs. 2 and 8, is to assist in preventing movement of the nut, the transverse groove cutting the longitudinal arched, nor is it provided with corrugations, the inner face being smooth, as shown at 18.

In Fig. 8, the plate is thin, and is provided on its inner face with ribs 19, and the end 9, the plate is groove. thus forming the edge of the lock is engaged by somethin a series of teeth which bite into the fish plate. The entire extent of the face of the lock might be provided with the transverse grooves if so desired.

The forms shown in Figs. 7 and 10 having smooth. under faces, are for positions where D such as the flange of the rail to prevent turning of the lock. v

The form shown in Fig. 13 is a permanent lock, and not capable of being released, eX- cept by breaking the teeth, thus permittiir the nut to be unscrewed. This form is especially adapted for rail joints.

The lock shown in Figs. 2, 3, 5 and 6 being arched, all the slack caused by strain of the p arts, rust and heat is taken up.

. In the form shown in Fig. 12, the end opposite tlse teeth is the heavier and tends to keep the spring end upward, gravity thus assisting to keep the spring catch in engagement. Fig. 12 is especially adapted for use in wood work.

In the forms shown in Figs. 7, 9 and 10, by inserting a slug of crescent hard metal or shape or otherwise between the bolt and the end of the lock, permanent lock is formed.

H the slug is of soft metal such as lead or tin, it will be permanent or unlocking as may be desired.

l claim:

The combination with the bolt and the nut provided on its inner face with spaced ratchet tee h, of a locl; comprising a plate having an elliptical opening for receiving the belt, said plate being resilient and arched longitudinally, and provided on its lower face with longitudinal corrugations, one end of the plate being cut away to form a spring tooth for engaging the teeth.

2-. The combination with a bolt, and the nut provided on its inner face with spaced ratchet teeth, of a lock comprising a plate having an elliptical opening for receiving the bolt, and provided on its lower face with longitudinal corrugations, and at one end with a transverse groove, the end of the plate 1 l l i l i l l provided with the transverse groove being cut away to form a spring tooth. for engaging the teeth of the nut.

23. The combination with the bolt, and the nut having ratchet teeth on its inner face, oi" a lock comprising a plate provided with an elliptical opening for receiving the bolt, and having its lower face provided with. corrugations, one end of the plate being cut-away to form a spring tooth, for engaging the ratchet teeth.

4. The combination with the bolt, and the nut provided on its inner face with ratchet teeth, of a lock for the nut comprising n. substantially llat plate provided at one end with. a spring tooth for engaging the ratchet teeth, said plate having an elliptical opening extending longitudinally thereof for receiving the bolt, said opening being oi a length su'l'lieient to permit the iisongugemcnt ol the tooth with the ratchet teeth when the plate is moved with respect to the bolt.

5. The combii'iation with. the bolt, and the nut provided on its inner face with ratchet teeth, of a lock for the nut comprising a resilicnt and arched plate provided at one end with a spring tooth for engaging the ratchet teeth, said plate having an elliptical opening extending longitudinally thereof, for receiving the belt, said opening being of a length suliicient to permit the disengagement oi the tooth with the ratchet teeth when the plate is moved with. respect to the bolt.

6. The combination with the bolt, and the nut provided on its inner lace with ratchet teeth, of a lock provided with an elliptic: 1 opening for receiving the bolt, and having one of its ends cut away to form a spring tooth. for engaging the ratchet teeth, the inner face of the lock being provided with ribs or corrugations parallel with the direction of length. of the elliptical opening.

HEYRY W. W'OR'PHING'FON.

Witnesses NATHAN RIGDON, F. T. Wnnnnn. 

